[bigpooch]

I agree basically with what you have said. Regardless of
what physical universes exist, logic must hold in that
universe and therefore mathematics.

If one assumes the existence of a being (not necessarily
God) that created the physical cosmos, with its physical
laws, there should be no difficulty that this being
(regardless of it being omnipotent or not!) may sometimes
decide to let certain events occur that contravene those
phsyical laws that normally almost always hold.

In the case of logic and mathematics, NO BEING, including
God, is able to contravene the "laws of logic"; i.e., it is
impossible to:

a) Find positive integers x,y and z such that (x^3)+(y^3)=z^3.
b) Make an absolutely true statement false.
c) Make both a statement S and its negation (not S) true
simultaneously.